drivers: renesas: rcar: iic_dvfs: Fix coding style

Sort the header includes alphabetically, fix typos and drop unneeded TAB
and replace it with space

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: I62e2658b0309c0985dd32ff023b8b16bd7f2be8e
2 files changed